Spreader of an optical disc

Details Spreader of an optical disc Spreader of an optical disc

1996-05-17

1998-09-01

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work feeding or handling means

156 74, 118 52, 427240, B32B 3100

Patent

active

058006702

ABSTRACT:
A spreader of an optical disc capable of receiving an adhesive when first and second resin substrates are rotated at high speed in a spreading step in the case of manufacturing the optical disc, and capable of preventing the adhesive from being contaminated at the peripheries of the first and second resin substrates. The spreader of the optical disc for spreading the adhesive comprises the first resin substrate and second resin substrate, wherein the first and second resin substrates are laid on and bonded to each other by way of the adhesive and rotated together, a rotatable receiving platform on which the first resin substrate is placed, and a cover member for receiving the adhesive scattered from the first and second resin substrates when they are rotated. The spreader of the present invention can surely receive the adhesive interposed between the first and second resin substrates, which is scattered outward, and prevent the adhesive from being scattered therearound.

REFERENCES:
patent: 4838979 (1989-06-01), Nishida et al.
patent: 4877475 (1989-10-01), Uchida et al.
patent: 4982694 (1991-01-01), Moriyama
patent: 4995799 (1991-02-01), Hayashi et al.
patent: 5069155 (1991-12-01), Kunze-Concewitz et al.
patent: 5312487 (1994-05-01), Akimoto et al.

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